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Fix #15172 FP constParameterPointer with mmap() addr argument #8992

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Merged
danmar merged 1 commit into from
Nov 6, 2026
Merged

Fix #15172 FP constParameterPointer with mmap() addr argument #8992

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2 changes: 1 addition & 1 deletion cfg/bsd.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -443,7 +443,7 @@
<returnValue type="void *"/>
<noreturn>false</noreturn>
<leak-ignore/>
<arg nr="1" direction="in">
<arg nr="1">
<not-uninit/>
</arg>
<arg nr="2" direction="in">
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2 changes: 1 addition & 1 deletion cfg/gnu.cfg
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Expand Up @@ -1991,7 +1991,7 @@
<returnValue type="void *"/>
<noreturn>false</noreturn>
<leak-ignore/>
<arg nr="1" direction="in">
<arg nr="1">
<not-uninit/>
</arg>
<arg nr="2" direction="in">
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4 changes: 2 additions & 2 deletions cfg/posix.cfg
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Expand Up @@ -2472,7 +2472,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
<returnValue type="void *"/>
<noreturn>false</noreturn>
<leak-ignore/>
<arg nr="1" direction="in">
<arg nr="1">
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<not-uninit/>
</arg>
<arg nr="2" direction="in">
Expand Down Expand Up @@ -2504,7 +2504,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
<returnValue type="void *"/>
<noreturn>false</noreturn>
<leak-ignore/>
<arg nr="1" direction="in">
<arg nr="1">
<not-uninit/>
</arg>
<arg nr="2" direction="in">
Expand Down
7 changes: 7 additions & 0 deletions test/cfg/bsd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <sys/uio.h>

Expand Down Expand Up @@ -180,3 +181,9 @@ void reallocarray_notused(void)
// cppcheck-suppress [leakReturnValNotUsed, ignoredReturnValue]
reallocarray(NULL, 10, 10);
}

void mmap_fixed(void *addr) // No constParameterPointer: mmap() may replace the mapping at addr
{
// cppcheck-suppress valueFlowBailoutIncompleteVar
(void)mmap(addr, 0x1000, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
}
7 changes: 7 additions & 0 deletions test/cfg/gnu.c
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Expand Up @@ -905,3 +905,10 @@ int nullPointer_epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
return epoll_ctl(epfd, EPOLL_CTL_DEL, fd, NULL);
}
#endif

void mmap_fixed(void *addr) // No constParameterPointer: mmap() may replace the mapping at addr
{
// cppcheck-suppress valueFlowBailoutIncompleteVar
// cppcheck-suppress leakReturnValNotUsed
(void)mmap(addr, 0x1000, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
}
7 changes: 7 additions & 0 deletions test/cfg/posix.c
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Expand Up @@ -1628,3 +1628,10 @@ void pthread_define_test()
PTHREAD_SCOPE_PROCESS;
PTHREAD_SCOPE_SYSTEM;
}

void mmap_fixed(void *addr) // No constParameterPointer: mmap() may replace the mapping at addr
{
// cppcheck-suppress valueFlowBailoutIncompleteVar
// cppcheck-suppress leakReturnValNotUsed
(void)mmap(addr, 0x1000, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, 0, 0);
}
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